Mariah Carey scoffed at her wealthy ex’s idea of a prenup, calling it “tacky and insulting,” according to a report.

The singer, reportedly worth more than $500 million herself, balked at Australian businessman James Packer‘s offer, which included $6 million a year for each full year of marriage, an allowance for clothes and the use of a private plane, TMZ reported Saturday.

Packer, himself worth an estimated $3 billion, was willing to pay for a credit card for Carey but didn’t want any jewelry or items worth more than $250,000 outside of special occasions to be considered a gift unless they specifically wrote, “This is my gift to you,” according to the site.